Hi There.
Could confirm the opening hours of Haneda Airport office to exchange the JR Pass?
The following sites says:
JR EAST Travel Service Center - Haneda Airport Terminal 3 (Tokyo Monorail)
6:45 - 20:00, every day of the year
*Temporary Hours of Operation 8:00 - 16:00
I would like to know if it closes at 20:00 or 16:00, please.
https://japanrailpass.net/en/exchange.html
https://www.jreast.co.jp/e/customer_support/service_center_haneda.html
Many Thanks!